It's probably a case that Crossfit is similar to the training MMA fighters use, not the other way around.

Stu Ward
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Let thy food be thy medicine, and thy medicine be thy food.~Hippocrates
Strength is the adaptation that leads to all other adaptations that you really care about - Charles Staley
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Thanks TimD

One of my friends had a viewing party and we got a bunch of beers and $h1t to watch at his house. Some of the early matches were okay but the main event was maybe a little over a minute. I don't know much about MMA but I also don't know much about, say, basketball and it's more fun to watch.